[Papyrus] [2019-09] Update the reference to the release repository

Change-Id: Ifff9686ce9fbbaa913ca58eb7d668269bf267d0a
Signed-off-by: Pauline DEVILLE <pauline.deville@cea.fr>
diff --git a/mdt-papyrus.aggrcon b/mdt-papyrus.aggrcon
index c34a61b..78c9055 100644
--- a/mdt-papyrus.aggrcon
+++ b/mdt-papyrus.aggrcon
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="ASCII"?>
 <aggregator:Contribution xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:aggregator="http://www.eclipse.org/cbi/p2repo/2011/aggregator/1.1.0" description="Contribution of the Modeling Papyrus project" label="Papyrus">
-  <repositories location="https://download.eclipse.org/modeling/mdt/papyrus/updates/milestones/4.5/RC2/main/" description="Papyrus">
+  <repositories location="https://download.eclipse.org/modeling/mdt/papyrus/updates/releases/2019-09/4.5.0/main/" description="Papyrus">
     <features description="Papyrus SDK Feature" name="org.eclipse.papyrus.sdk.feature.feature.group" versionRange="4.5.0">
       <categories href="simrel.aggr#//@customCategories[identifier='Modeling']"/>
     </features>